Visible light-induced tandem oxidative cyclization of 2-alkynylanilines with disulfides (diselenides) to 3-sulfenyl- and 3-selenylindoles under transition metal-free and photocatalyst-free conditions

Abstract

A simple and efficient synthesis of 3-sulfenyl (3-selenyl) indoles via visible light-induced cyclization of 2-alkynylanilines with disulfides(diselenides) was developed under transition metal-free and photocatalyst-free conditions.